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From the race for president, now to Congress. It's caught in a serious time crunch, not to finish its legislative business, though it hasn't done much of that this year. No, the real squeeze is in the campaign fundraising. As NPR's Peter Overby reports, lawmakers are trying to fill up lobbyists' schedules with events hoping to extract a few more dollars for their re-election bids.

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ROBERT SIEGEL, HOST:

This is ALL THINGS CONSIDERED from NPR News. I'm Robert Siegel.

AUDIE CORNISH, HOST:

And I'm Audie Cornish. In the presidential campaign, it was relatively quiet on the stump today, but it was anything but on the cable channels. Pundits and spinmasters continued to chew over that Florida fundraiser and Mitt Romney's controversial line about America's 47 percent.

A lot of medicine's direst emergencies come down to one problem: lack of oxygen.

Cardiologist John Kheir started thinking about that when a little girl in his care, drowning from lung hemorrhages, died before she could be hooked up to a heart-lung machine that would have kept her blood oxygenated while the damage was repaired.

Scientists have known for a long time that rice — often babies' first food and the staple of much of the world's diet — is good at absorbing inorganic arsenic from soil during the growing process.

Two separate analyses, one by Consumer Reports and one by the Food and Drug Administration, have raised concerns that we might be getting too much of this known human carcinogen in our diets.